Carbid-feed for acetylene-gas generators.



No. 853,125. PATENTBD MAY 75, 19o?.

. 'Ng D. sHAPPEMv-J. s. BENTON. GARBID FEED POR AGETYLENE GASGENERATORS.

APPLIGATION FILED AUG. B, 1906.

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A TTOHNE YS No. 853,125. l PATENTED MAY-7. 1907.

' A Y N. D. SHAEEEML Ls. BENTON.

' GAEBID FEED EOE AGETYLENE GAS GENERATOES.

APILIOATON FILED AUG. 8, 1906.

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- /NVENTO/s Nan/amm DSHAFf-fl? JgS/AHIHBENTON UNITED STATES PATENTOFFICE.

NORMAN D. SHAFFERv AND JOSIAH S. BENTON, OF JOI-INSTOWN, PENNSYLVANIA.

CARBlD-FEED FOR AGETYLENE-GAS GENERATORS.

Patented May 7, i907.

Application led August 8, 1906. Serial No. 329,721.

To a/Z whom, it ina/y concer-71,:

Be it known that we, NORMAN D. SHAFFER and J osIAH S. BENTON,y citizensof the United States, and residents of Johnstown, in the county ofCambria and State of Pennsylvania, have invented certain new and usefulImprovements in Carbid-Feeds for Ace tylene-Gas Generators, of which thefollowing is a specification. y

This invention is an improvement in carbid feedv devices for acetylenegas generators, and the invention consists in certain novelconstructions and combinations of parts as will be hereinafter describedand claimed.

In the drawings, Figure 1 is a side view of the improved device with thepan in charging position, that is to say, in position to receive itscharge of carbid from the hopper. Fig. 2 is a vertical longitudinalsection of the improved device with the pan in discharging position.Fig. 3 is a side lview of a portion of the acetylene 'gas machineshowing the devices which may be employed for oscillating or rocking thefeeder. Fig. 4 is a front elevation of the feed devices. Fig. 5 is a topplan view thereof. Fig. 6 is a front perspective view, and Fig. 7 a rearelevation of the feed devices, and Fig. 8 shows a somewhat differentshape of pan and interrupter from that shown in Figs. 1, 2, 3, 4, 5, 6and 7.

As shown, the feeder comprises a main discharge pan A, and aninterrupter or cut-off pan B, rigid with said pan and both of said partsbeing secured to a shaft C, by the rocking or oscillation of which thedesired operating movement may be given to the feeder. This oscillatingmotion may be given the feed devices by various mechanisms, and we donot desire to be limited in the broad features of our invention to anyparticular means for oscillating the feed devices. For the purpose ofillustration, however, we have shown in Fig. 3 oscillating devices whichform a part of Patent No. 685,545, issued October 29, 1901 to White andHarbaugh, and the oscillatingdevices shown and more fully described inthe said patent may, when desired, be used for oscillating the shaft andfeed devices connected therewith, or such oscillating motion may begiven in any other suitable manner, it being understood that inoperation it is desirable to shift the feed devices from the, pancharging position,

shown in Fig. 1tothe discharging position shown in Fig. 2, the pan whenas shown in Fig. 1 receiving its charge of carbid, and when shifted 'asin Fig.,2, discharging to the water in the generator, and theinterrupter B being in such position, shown in Fig. 2, shifted below thedischarging spout D of the hopper D to prevent the carbid from passingfreely from the ho per to the water below.

As s own, and as preferred, the pan A and the cut-off orinterrupter Bare rigidly constructed as one unit,l and are secured to the shaft C bymeansof the brackets E having the collars E riveted at E"Z or otherwisesuitably secured to the said shaft C, as shown in Figs. 1, 4 and 5. Bythus constructing the feeder as one unit we are able to eliminate allpivots or bearings between parts within the generator F, and exposed tothe deposits of lime, etc.

The interrupterB is spaced apart at its sides from the pan A by thebraces G, and it will be noticed, especially from Figs.v 1, 2, 5 and 6,that the interrupter overlying the pan discharges at b in one direction,whilethe pan A discharges at a in the opposite direction, the dischargeof the interrupter B being toward thel closed end A of the pan A, asbest shown in Fig. 2, so that the interrupter will discharge tothe pan Aas the parts are being shifted to the position shown .in Fig. 1, whilethe pan A will discharge when the parts are in the position shown inFig. 2, in which position the interruptor will -be shifted below thespout D of the hopper to prevent the free discharge of carbid from thesaid hopper.

As shown,V and preferred, the pan has its bottom divided by alongitudinal ridge A2 into two separate discharge troughs A3, and forconvenience in manufacturing the device from sheet metal, which is thepreferred material employed, we make the pan A with the bottom plate A4bent to produce the troughs A3 and the intermediate ridge A2, and theside plate A5 which extends continuously from the discharge end of thepan aro und the back thereof, as shown. The bottom plate A4 is lappedalong the outer side of the side plate and may be secured thereto bysoldering, riveting, or otherwise, as desired.

The interrupter B is in the form of a pan IOO and is mounted on theridge A2 and e'Xtends at its rear or discharge end preferably toa pointyabout midway between the line of the shaft C and the rear end of thepan A, as best shown in Figs. 2 and 5, the space between the dischargeend b of the interrupter and the rear end of the pan A permitting thevfree discharge of the carbid from the said interrupter to the pan aswill be understood from the drawings.

The troughs A4 are rounded as shown in Figs. 4 and 5, or they may beangular, if desired as illustrated in Fig. 8, in which the pan 1 has itstroughs 2 formed at their bottoms in angular shape and the interrupter 3is similarly formed at 4.

The division or separation of the discharge pan into two compartments isuseful, as it separates or scatters the carbid before it strikes thewater, increases the capacity of the device, and renders it mo'rereliable and rapid in action. It also causes the carbid to clean. thepan because the motion of the carbid, in feeding, is concentratedin thecenter of the bottom of the pan where the dirt and slackcarbid wouldalso be precipitated.

. As shown in Fig. 2, and as will be understood from Fig. 1, thedischarge spout D is provided with openings d, and the shaft C eX- tendstransversely through thesaid feed spout extending through the openingsd.

When the feed pan is in the charging position as shown in Fig. l, thecut-0H or interrupter is shifted from below the hopper spout and the panis adjusted to position to receive and retain its charge of carbid. Thenas the motion is reversedv and the feeder swings -towardits dischargingposition, as shown in Fig. 2, the cuteoif will be gradually interposedbelow the mouth of the hopper spout, thus interrupting the flow ofcarbid from the hopper while the pan is discharging its carbid to thewater in the generator. When properly proportioned to the size generatorit is to feed, the improved device will drop approximately auniformamount of carbid at; each operation.

lIt will be understood that in practice the feeder may be made ofmalleable casting or of pressed sheet metal, and it may be desirable insome instances to make them of pressed and enameled ware;

We claim- 1. The improved carbid feeder herein described, consisting ofa pan having a side plate and a bottom plate secured at its outer edgesthereto andbent forming separate discharge troughs, and a ridge betweenthe same, an interrupter or cut-off mounted on the said ridge anddischarging at one end to the pan at the opposite end thereof from thedischarge of its separate troughs, braces between the pan andinterrupter, and brackets secured to the interrupter and having collars.to receive an operating shaft, all substantially as and for thekpurposesset forth.-

2. A carbid feeder yhaving a main discharge pan divided longitudinallyinto separate independent discharging troughs. L.

3. A carbid feeder having a main discharge pan whose bottom is dividedlongitudinally into independently discharging troughs, and aninterrupter pan or cut-0H above the main pan and discharging to the rearends of said independent troughs of the main pan. 4. A carbid feederhaving a main pan whose bottom is divided by a longitudinal ridge intoseparate independently discharging troughs opening at one end of saidpan, and an interrrupter or cut-off pan mounted on the said ridge anddischarging to the mainv an in a direction the reverse of the dischargerom the independent troughs, substantially as set forth.

5. A carbid feeder having a mainpan arranged to discharge at one end, acut-off or interrupter pan above the main pan and discharging in areverse direction to saidpan, said interrupter pan being supported,midway between its sides on the main pan, brackets between theinterrupter pan and the sides of the main pan, a shaft and collarsconnected with the interrupter pan and fitting said shaft, substantiallyas set forth.

NORMAN D. SHAFFER.

JOSIAH S. BENTON.

Witnesses:

HUGO TERNEs, LEWIS D. SHAFFER.

